Improvement in stove-grates



J. A. READ.

STOVE-GRATE.

No.174,641. Patented March 14, 1876.

N.PETERS, FHUTOLITHOGRAPHER, WASHINGTON. D C.

' the grate.

ordinary ash-pit or drawer.

UNI E STATES PATENT orrron.

JOSEPH A. READ, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN STOVE-GRATES.

' Specification forming part of Letters Patent No. 174,641, dated March 14, 1876; application filed January 19, 1876.

To all whom it may concern:

Be'it known that I, JosEPH A. READ, of the city of Philadelphia, in the State ofPennsylvania, have invented a new and useful Improvement in Grates for Stoves, which improvement is fully set forth in the following specification, reference being had to the accompanying drawings.

The object of my invention is to'produce a vibratile circular grate for stoves and furnaces, whereby the separation of the ashes and the discharge of oinders or stones are facilitated, and without tilting any portion of Figure 1 is a plan view, showing the upper side of my said improved grate; Fig. 2, a plan view of the outer rim of the same without the central portion; Fig. 3, a plan View of the under side of said central portion detached from the said outer portion, and Fig. 4 a vertical diametrical section of the two said parts of the grate adjusted together.

The outer portion or rim A has its flanged portion a provided withfilternating teeth 2 and spaces 3, and is under-curved at 4 (see Fig. 4) to the lower side of the rim, while the inner side a ofsaid rim A is beveled outward and upward from the under to the upper sides of said rim, as shown in Figs. 2 and 4. About one-fourth of the area of the opening within the rim A is occupied by a flat sector-shaped plate, a, the inner end 5 of which has a circular cavity, 6, (see Figs. 2 and 4,) for supporting the inner grate B by its central boss I). This sector-shaped plate a is perforated by numerous holes, 7 through which ashes may readily pass down into any (Not shown.) The inner'grate B is made of such diameter and thickness as will nearly fill the open area of the outer rim A when the central boss b thereof rests or moves in the cavity 6. The perimeter of B is provided with alternating teeth 8 and spaces 9 around about threefourths of its circumference. The interior of said grate B is divided by a central hub, b, and four arms, 10 10 10 10, into four sectorlike spaces, one of which, 11, is entirely open or free from any obstructions, and the other three spaces divided by intervening spaces require.

and projections, as represented in Figs. 1

downward-projecting conical stem, 12, (see Fig.- 4,) which is supported in the usual socket of the ordinary cross-bar, (not shown,) so that the whole grate may be vibrated, as oocasion may require.

On the under side of the center-grate B there are two studs or projections, 13 14:, near the outer ends of the bars 10 10", respective ly, (see Figs. 3 and 4,) which serve, alternate- 1y, to stop the vibrative motions of said grate B by coming in contact with the outer edges of the plate a of the grate A, and thus limit the vibrative motions of the center-grate B in the operation of opening and closing the space 11 therein. Through the curved edge of the grate A there is a hole, 15, for the insertion of the end of a shaking bar or. handle,

(indicated by the dotted lines o in Fig. 1,)

and directly opposite to this hole 15 there is a mortise or corresponding hole in the thickened edge 16 of the center-grate B, so that the end of the handle may be entered into both holes whenit is desired that both A and B shall be vibrated simultaneously in shaking out the ashes; and so, also, that the entering end of said handle '1; may be withdrawn from the mortise in B, and allow the outer grate A to be moved around the centergrate B (which will be held stationary by the fuel or burden upon it) for the purpose of producing the required opening for the'discharge of cinders, stones, or the whole'contents of the fuel or fire box down into the usual ashpit or drawer. (Not shown.)

Having thus minutely described and explained the construction and operation of the different parts of my improvement in stove- The whole grate is supported bya graies, it will be readily understood and apranged to operate together substantially in preciated without any further remarks. the manner hereinbefore set forth and de- I claim as my inventionscribed. A circular grate consisting of the rim or outer portion A, and its plate a and handle- JOSEPH READ hole 15, in combination with the central por- Witnesses:

BENJ. MORISON, WM. H. MORISON.

tion B having the open space 11 and mortise 16, the said parts being constructed and ar- 

